Mars Painting By Herb Herrick For An Article About Terraforming In World Book Science Annual 1975. Consultant:

Image of Saturn and some of its moons, captured by the James Webb Space Telescope’s NIRCam instrument on June 25, 2023.

Credits: NASA

NATIVE CARBON DIOXIDE FOUND ON JUPITER’S MOON EUROPA

Hey. Why isn’t the moon landing a national holiday in the US. Isn’t that fucked up? Does anyone else think that’s absurd?

Astronomical photographs, Harvard College Observatory, Cambridge, 1890-1920

The Sun’s corona during a solar-eclipse.

2023 October 23

Moon Io from Spacecraft Juno Image Credit: NASA, JPL-Caltech, SwRI, MSSS; Processing & Copyright: Ted Stryk & Fernando García Navarro

Explanation: There goes another one! Volcanoes on Jupiter’s moon Io keep erupting. To investigate, NASA’s robotic Juno spacecraft has begun a series of visits to this very strange moon. Io is about the size of Earth’s moon, but because of gravitational flexing by Jupiter and other moons, Io’s interior gets heated and its surface has become covered with volcanoes. The featured image is from last week’s flyby, passing within 12,000 kilometers above the dangerously active world. The surface of Io is covered with sulfur and frozen sulfur dioxide, making it appear yellow, orange and brown. As hoped, Juno flew by just as a volcano was erupting – with its faint plume visible near the top of the featured image. Studying Io’s volcanoes and plumes helps humanity better understand how Jupiter’s complex system of moons, rings, and auroras interact. Juno is scheduled to make two flybys of Io during the coming months that are almost 10 times closer: one in December and another in February 2024.

∞ Source: apod.nasa.gov/apod/ap231023.html

Into the Cosmic Heart, IC 1850 © Aleix Roig

Astronomical photographs, Harvard College Observatory, Cambridge, 1890-1920

Cosmic Delights and Distant Discoveries Unfold in ‘Astronomy Photographer of the Year 15’